Cargo bike brick identity

Question

Looking to identify the box pieces here:

Answer 1

That's not a single part.

According to the instructions shared by the creator of that cargo bike on their twitter account, it's a combination of :

• 1 Black Plate, Round 1 x 1

• 1 Black Plate, Modified 2 x 3 with Hole

• 2 Black Bracket 1 x 2 - 2 x 2 Inverted

• 1 Black Panel 1 x 2 x 1

• 2 Black Tile, Round 1 x 1 Quarter

• 2 Black Tile 1 x 2 with Groove

• 2 Black Tile 1 x 3

• 2 Black Bracket 1 x 2 - 1 x 2 Inverted

• 1 Light Bluish Gray Plate, Modified 2 x 2 Thin with Plane Single Wheel Holder

• 1 Trans-Clear Wheel Center Small with Stub Axles (Pulley Wheel)

• 1 Black Tire 14mm D. x 4mm Smooth Small Single